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On the spintron ,the ex valve does not open against the same cyl pressure. I always wondered if this was affecting the harmonic results.
Posts by john marcella
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2,405 Posts
id think itd most definately change something.....less the cylinder pressure....the exhaust valve wont endure the same amount off stress or force?
Yep, with the pressure fighting the valve opening it would cause the rocker and push rod to flex and react way different than on a spintron, i would think?
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